Physically non-stick structure and cooking utensil

Abstract

The present application discloses a physically non-stick structure and a cooking utensil applied on a surface of a metal substrate, the physically non-stick structure includes a concave structure and a convex structure on at least a part of an area of the concave structure, at least a part of a surface of the concave structure and/or at least a part of a surface of the convex structure are provided with a physical vapor deposition layer, and a morphology of a surface of the physical vapor deposition layer is similar to a morphology of the surface of the concave structure and/or the surface of the convex structure covered by the physical vapor deposition layer.

What is claimed is: 
     
       1. A physically non-stick structure configured for being applied to a surface of a metal substrate, comprising a concave structure and a convex structure in at least a part of an area of the concave structure, wherein at least one of at least a part of a surface of the concave structure or at least part of a surface of the convex structure is provided with a physical vapor deposition layer, and a morphology of a surface of the physical vapor deposition layer is the same as at least one of a morphology of the surface of the concave structure or a morphology of the surface of the convex structure covered by the physical vapor deposition layer,
 wherein the convex structure comprises a plurality of protrusions at least on the part of the surface of the concave structure, and a height of each of the plurality of protrusions is 0.1-0.3 micrometers. 
 
     
     
       2. The physically non-stick structure according to  claim 1 , wherein the concave structure and the convex structure are integrated with the metal substrate, and the physical vapor deposition layer directly contacts at least one of the concave structure or the convex structure. 
     
     
       3. The physically non-stick structure according to  claim 1 , wherein the concave structure comprises a plurality of recesses, and each of the plurality of recesses has a depth of 45-85 micrometers. 
     
     
       4. The physically non-stick structure according to  claim 3 , wherein the concave structure is formed by the plurality of recesses arranged in an orthogonal array, and each of the plurality of recesses has a diameter of 0.3-0.55 millimeters, a depth of 55-75 micrometers, and a hole center distance of 0.6-0.8 millimeters. 
     
     
       5. The physically non-stick structure according to  claim 1 , wherein a thickness of the physical vapor deposition layer is 0.8-1.45 micrometers. 
     
     
       6. A cooking utensil, comprising the physically non-stick structure according to  claim 1 , wherein the physically non-stick structure is at least provided on a part of an area at a bottom of an inner surface of the cooking utensil. 
     
     
       7. The cooking utensil according to  claim 6 , wherein the physically non-stick structure is provided in a defined area of the inner surface of the cooking utensil, and the concave structure and the convex structure are provided outside of the defined area of the inner surface of the cooking utensil. 
     
     
       8. The cooking utensil according to  claim 6 , wherein the physically non-stick structure is at least provided in a part of an area of an outer surface of the cooking utensil. 
     
     
       9. The cooking utensil according to  claim 8 , wherein the physically non-stick structure is provided in the area of the outer surface of the cooking utensil away from a bottom of the cooking utensil, or the convex structure and the convex structure are integrally provided in the area of the outer surface of the cooking utensil away from the bottom of the cooking utensil. 
     
     
       10. A physically non-stick structure configured for being applied to a surface of a metal substrate, comprising a concave structure and a convex structure in at least a part of an area of the concave structure, wherein at least one of at least a part of a surface of the concave structure or at least part of a surface of the convex structure is provided with a physical vapor deposition layer, and a morphology of a surface of the physical vapor deposition layer is the same as at least one of a morphology of the surface of the concave structure or a morphology of the surface of the convex structure covered by the physical vapor deposition layer,
 wherein the concave structure comprises a plurality of recesses, and each of the plurality of recesses has a depth of 45-85 micrometers, 
 wherein the concave structure is formed by the plurality of recesses arranged in an orthogonal array, and each of the plurality of recesses has a diameter of 0.3-0.55 millimeters, a depth of 55-75 micrometers, and a hole center distance of 0.6-0.8 millimeters.